Trapping of surface-plasmon polaritons in a subwavelength cut

被引：5
|
作者：
Wang, Liu
Wang, Ling-Ling [1 ]
Zeng, Yaping
Xiang, Dong
Meng, Bo
Zhai, Xiang
Pan, An-lian
机构：
[1] Hunan Univ, Key Lab Micronano Optoelect Devices, Minist Educ, Changsha 410082, Hunan, Peoples R China
来源：
OPTICS COMMUNICATIONS | 2011年 / 284卷 / 01期
基金：
中国国家自然科学基金; 中国博士后科学基金;
关键词：
TRANSMISSION; LIGHT;
D O I：
10.1016/j.optcom.2010.08.022
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
We study a transverse magnetic wave propagation in a subwavelength metallic slit which is modified by a perpendicular cut. The surface-plasmon polaritons (SPPs) can be trapped in the perpendicular cut by tuning the length or width of the cut. Moreover, the period of the resonance states corresponds to the difference of the cut's length Delta L which is 450 nm. An analytical solution for the resonance condition of the structure is derived by the cavity theory, which is consistent with the numerical simulation by using the finite difference time domain (FDTD) method. (C) 2010 Elsevier B.V. All rights reserved.
引用
收藏
页码：153 / 155
页数：3
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